18479702960

素因数分解:

$2^4\times 5^1\times {\mathrm{12739}}^1\times {\mathrm{18133}}^1$

素因数の和:30885

約数の個数: 40

約数和(自身を含む): 42971051760

約数和(自身を除く): 24491348800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12739, 18133, 25478, 36266, 50956, 63695, 72532, 90665, 101912, 127390, 145064, 181330, 203824, 254780, 290128, 362660, 509560, 725320, 1019120, 1450640, 230996287, 461992574, 923985148, 1154981435, 1847970296, 2309962870, 3695940592, 4619925740, 9239851480, 18479702960]

約数ペア:

[(1, 18479702960), (2, 9239851480), (4, 4619925740), (5, 3695940592), (8, 2309962870), (10, 1847970296), (16, 1154981435), (20, 923985148), (40, 461992574), (80, 230996287), (12739, 1450640), (18133, 1019120), (25478, 725320), (36266, 509560), (50956, 362660), (63695, 290128), (72532, 254780), (90665, 203824), (101912, 181330), (127390, 145064)]